Dumping device



J. W. WlLLlAMS.

DUMPING DEVICE- APPLICATION FILED JAN. 30. 1920.

. Patented Mar. 15,1921.

4 SHEETS-SHEET I.

Wm W WS J. W. WILLIAMS.

DUMPING DEVICE.

APPLICATION FILED JAN. 30. 1920.

1,37 1,963.. Patented Mar. 15, 1921.

4 SHEETS-SHEET 2.

Quorum;

I. W. WILLIAMS.

DUMPING DEVICE.

APPLICATION FILED, JAN. 30. I920.

QXmm one/y J. W. WILLIAMS.

DUMPING DEVICE.

APPLICATION FILED JAN. 30, I920.

Patented Mar. 15, 1921.

4 SHEET$SHEET 4.

j I in r-rnioz 204mm 11(5J4/47'd. (1/: Z/[Zl/ia ln J/ UNITED STATESPATENT OFFICE.

DUMPING DEVICE.

, Specification of Letters Patent.

Patented Mar. 15, 1921.

Application filed January 30, 1920. Serial No. 355,096.-

To all whom it may concern:

Be it known that I, JOSEPH WALroN W n- LIAMS, a citizen of the UnitedStates, residing at Blabon, in the county of Steele and State of NorthDakota, have invented new and useful Improvements in Dumping Devices, ofwhich the following is a specification.

This invention relates to dumping devices and has for its object theprovislon of a platform interposed within a drive-way and having itsfloor so mounted that it may tip upto cause dumping of a wagon, sleigh,or motor truck driven thereonto.

An important object is the provision of a device of this character inwhich the floor is formed of two independently movable sections, one ofwhich is adapted for use for dumping wagons and sleighs and the other ofwhich is adapted for use in dumping motor trucks, means being providedwhereby either or both sections may be locked against movement as whenthe vehicle is moved thereover and gotten into position ready fordumping.

Another object is the provision of a device of this character which isprovided with means whereby either or both of the floor sections may bereturned to normal position in an easy and efficient manner.

An additional object is the provision of a device of this characterwhich will be comparatively simple and inexpensive in manufacture,highly efii-cient in use, durable in service, and a general improvementin the art.

With the above and other objects and advantages in view, the inventionconsists in the details of construction to be hereinafter more fullydescribed and claimed, and illustrated in the accompanying drawings inwhich Figure 1 is a plan view of my device interposed in a drive-way,

Fig. 2 is a side elevation,

Fig. 3 is an end elevation,

Fig. 4 is a cross sectional view on the line 44 of Fig. 1,

Fig. 5 is a cross sectional view on the line 5-5 of Fig. 1,

Fig. 6 is an end elevation of the opposite end, showing the platform inelevated position,

i Fig. 7 is a longitudinal sectional view showing the inner floorsection in dumping position and the outer section held stationary, thevehicle being indicated in dotted lines, and

8 is a similar view showing both floor sect ons in dumping position, thevehicle be-. m indicated in dotted lines. eferrlng more particularly tothe drawings, the numeral 10 designates broadly an elongated rectangularframe which includes sldes 11, ends 12, and supporting legs 13 at theends, and other legs 14: intermediate the ends. This frame is interposedin a suitable dr ve-way designated by the letter A and this drive-way isprovided adjacent the frame 10 with a trap-door B. Disposed and securedwithin the frame 10 n spaced relation to the sides 11, are bars 15 whichare braced by means of a transverse bar 16 secured upon the underside ofthe sides 11. These bars 15 extend along the frame as far as theintermediate legs 14. Secured within the other end portion of the frame10 is a rectangular frame 17 provided with a trap-door 18.

Disposed between the sides 11 of the outer frame 10 and the bars 15 areplatform sections 19 which extend the full length of the frame 10 andwhich are somewhat L-shaped, as shown at 19, so as to fill the spacesvbetween the sides 11 and the rectangular'fiiame 17. These sections 19are pivotally mounted by short shafts 21 which extend through the sides11, through the members 19, and through the bars 15.

In order that the sections 19 may be held in normally horizontalposition, I provide a shaft 22 journaled between the legs 13 at the endof the platform provided with the trap-doors and this shaft 22 carriesarms 23 which are engageable beneath the ends of the sections 19. At oneend the shaft 22 carries a lever 24 whereby it may be rocked and thislever is adapted to move between stop pins 25 and 26 on the adjacent leg13. At their other ends the sections 19 have their upper portions cutaway, as shown at 27, for a purpose to be described. The numeral 28 desinates the inner platform section which fills the space between the bars15 and between the frame 17 and the opposite end of the frame 10. Thismovable section 18 includes longitudinal bars 29 connected by cross bars30 and 31 upon which are secured suitable boards or planks. Thetransverse bar 30 is of the same width as the section 28 while thetransverse bar 31 projects beyond the sides of the section 28 andengages within the cut away portions 27 in the sections 19. The member28 isprovided intermediate its ends with a shaft 32 journaled withinholes 33 in the sections 19 and resting within recesses 34 in the bais15. The member 28 is thus pivotally mounted with respect to the frame10. Secured upon the underside of the transverse bar 30 are cleats 35which extend beyond the end of the section 28 and which engage beneaththe L-shaped portions 20 of the sections 19 adjacent the frame 17 forpreventing this end of the section 28 from swinging upwardly beyond theplane of the remainder of the platform. V

In order that the section 28 may be held in normally horizontalposition, I provide a shaft 36 which is j ournaled between the legs 14and which carries arms 37 adapted to engage beneath the ends of the bars29. This shaft 36 carries at one end a lever 38 movable between stops 39and 40whereby the arms 37 may be moved into and out of engagement withthe bars 29.

In order that the platform sections 19 and also the section 28 may bereturned to normal position after being moved to dumping position, aswill be hereinafter described, I provide a shaft 41 journaled betweenthe legs 13 at the other end of the frame 10. Connected with this shaftare chains 42 which are connected with the adjacent ends of the bars 29.This shaft 41 serves the purpose of the windlass and is provided at oneend with a sprocket 43 about which is trained a sprocket chain 44 whichis in turn trained about another sprocket 45 mounted upon the stub-shaft46 carrying a gear 47 with which meshes a second gear 48 having itsshaft 49 squared for engagement therefrom of a handle 20.

The operation of the device is as follows:

Under normal conditions the plat-form sections 19 and 28 are allhorizontally disposed and lie flush with the top of the frame 1 9. Atsuch time the levers 24 and 38 are in position engaging the stops 25 and39 and the arms 23 and 37 engage beneath the end portions of thesections 19 and bars 29, respectively. It will be observed that movementof any of the platform sections will then be impossible.

When it is desired to dump a motor truck. the truck is driven onto thedrive-way A and onto the platform within the confines of the frame 10.The wheels of the truck will rest entirely upon the platform sections 19and the rear end of the truck will. be adjacent the trap-door B. Thelever 24 is then moved into engagement with the stop 26 and thismovement will result in disengagement of the arms 23v with the ends ofthe sections 19. The lever 38 is moved into engagement with the stops 40so as tomove the arms 37 out of engagement with the ends of the members29. The sections 19 and 28 may then be moved together. The weight of thetruck will then cause the sections 19 and 28 to swing upon the shafts 21and the rear end of the truck will then be inclined downwardly, as shownin Fig. 8. It will be obvious that when the tail-gate of the truck israised the contents will pass through the trap-door B. When the truck isthen dumped, the operator turns the handle 50 and thereby rotates theshaft 41 which will result in winding thereonto the chains 42. causingthe inner section 28 to be pulled downwardly, whereupon the engagementof the projecting ends of the cross bars 31 within the cut-away portions27 of the sections 19 will cause the sections 19 also to be returned tonormal position. The truck may then be'driven off from the platform.

en it is desired to dump a wagon or sleigh, the leversv 24 and 38 aremoved into engagement with the stops 25 and 40, respectively, so as tolook all the platform sections against movement. The wagon or sleigh isthen driven onto the drive-Way A and onto the platform of my device, thewheels or runners, as the case may be, resting entirely upon the section28. The operator then moves the lever 38 into engagement with the stop39 to disengage the arms 37 from the bars 29, whereupon the weight ofthe load will cause the section 28 to swin downwardly into inclinedposition, as s own in Fig. 7. When the tail-gate of the wagon or sleighis then raised it will be obvious that the load will-be dischargedthrough the trap-door 18 within the frame 17. The shaft 41 is thenrotated as in the previously described operation to return the section28 to normal horizontal position, after which the vehicle is driven off.

From the foregoing description and a study of the drawings it will beapparent that I have thus provided a simply constructed and easilyoperated device for dumping vehicles of various types in a thorough andefiicient manner. it will also be observed that if it is desired toassociate with my dev ce some scale for weighing loads thereon, thedraft animals in the case of a wagon or sleigh may be driven entirelyacross my device and allowed to stand upon the drive-way at one endthereof while the load is being weighed and dumped.

While 'I have shown and described ,the preferred embodiment of myinvention, it is of course to be understood that I reserve the right tomake such changes in the form, construction, and arrangement of arts aswill not depart from the s irit of t e invention or the scope of the suboined claims.

Having thus-described my invention, 1

claim:

1. A device of the character described comprising an elongatedrectangular frame interposed in a drive-way, a pair of barssecuredwithin said frame in spaced parallel relation to the sides thereof andterminating short of the length of the frame, said bars being providedintermediate their ends with recesses opening out to their upper edges,platform sections disposed between the sides of said frame and saidbars, and pivotally connected intermediate their ends therewith, meansfor holding said sections in normally horizontal position, an innersection disposed between said bars and having a shaft disposed withinsaid recesses and journaled through said first named sections, means fornormally holding said last named section in horizontal position, saidfirst and second named sections being tiltable when both of said holdingmeans are released, and said,

second named section being independently tiltable when said second namedholding means is released, and means for returning said sections tonormal position.

2-. A device of the character described comprising an elongatedrectangular frame interposed in a drive-way, a pair of bars securedwithin said frame in spaced parallel relation to the sides thereof andterminating short of the length of the frame, said bars being providedintermediate their ends with recesses opening out to their upper edges,platform sections disposed between the sides of said frame and saidbars, and pivotally connected intermediate their ends therewith, meansfor holding said sections in normally horizontal. position, an innersection disposed between said bars and having a shaft disposedwithinsaid recesses and journaled through said first named sections,means for normally holding said last named section in horizontalposition, said first and second sections being tiltable when both ofsaid holding means are released, and said second named section beingindependently tiltable when said second named holding means is released,and means for returning said sections to normal position, said lastnamed means comprising lateral extensions on said last named sectionengaging the top edges of said first named section, and a vWindlassstructure connected with said second named section. p

In testimony whereof I afiix my signature.

JOSEPH WALTON. WILLIAMS.

